I was pistol whipped last night and broke my nose.

[The Velveteen Ocelot]

6. You can *sue* the bar but you won't *win* unless you can prove

that the bar's failure to call 911 when you asked them to somehow made your injury worse. Also, they would probably argue that after you went outside, it appeared to them that you weren't badly hurt and had simply left the premises on your own. They could claim they thought you'd left and so didn't see any reason to call 911. On the other hand, in some jurisdictions, if you are a business invitee (customer), a business has a general duty to aid an injured person or take reasonable steps to prevent them from being injured. But you'd still have to prove the bar's failure to act caused or worsened your injury. You should contact a lawyer in your area for specific advice.